{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949727,-0.313079,0.000000,0.000000,0.115369,-0.349971,0.929629,0.000000,-0.290781,0.882084,0.370640,0.000000,-1855492.384486,5628642.836741,2349247.619102,1],    "boundingVolume": {    "region": [1.889161,0.379607,1.889299,0.379789,0.000000,42.444313]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/8_73351.b3dm"}}}